136 entries under firm topic. ×
| intense(adjective, solid, fixed, sober) | |
| jelled(adjective, solid, stiff, inflexible) | |
| liege(adjective, solid, fixed, resolute) | |
| patterned(adjective, solid, fixed, sturdy) | |
| placed(adjective, solid, stiff, inflexible) | |
| positioned(adjective, solid, stiff, inflexible) | |
| reserved(adjective, reasonable, moderate, solid) | |
| serious-minded(adjective, solid, fixed, sturdy) | |
| sited(adjective, solid, stiff, inflexible) | |
| situate(adjective, solid, stiff, inflexible) | |
| soundly | |
| strict(adjective, strong, flat, solid) | |
| tenaciously | |
| unquestioning(adjective, solid, fixed, resolute) | |
| wedged(true, fixed, constant, steadfast) | |
| wholehearted(adjective, solid, fixed, resolute) |
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| APA | Smart Define. (2015). stable thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/stable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "stable thesaurus" https://smartdefine.org/stable/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, stable thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/stable/thesaurus/synonyms>. |
| MLA | Smart Define. "stable thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/stable/thesaurus/synonyms> |